Answer:
$12.65
Step-by-step explanation:
i caculated that
Answer:
Step-by-step explanation:
There is no solution as you have two variables and only one equation. The best you can do is solve for one variable as a function of the other.

Step-by-step explanation:
if area is = 10mm *18mm = 180mm2
17/20 = x/100
20x = 1700
x = 1700/20
x = 85%